Accuracy of measuring axillary temperature using mercury in glass thermometers in children under five years: a cross sectional observational study

Abstract

BACKGROUND: Measuring axillary temperature with mercury in glass thermometers is continued in clinical practice though there are many limitations. This is mainly due to convenience and cost. This study was conducted to ascertain the accuracy of measuring axillary temperature with mercury thermometers in preschool children. METHODS: Axillary temperature was measured in 250 preschool children using standardized mercury thermometers. Time taken to record the final temperature and its correlates were assessed. RESULTS: Time taken to record the final temperature extended up to six minutes. This duration varied according to age, body mass index and body temperature, but a significant variation was noted only with age. CONCLUSIONS: Measuring axillary temperature with mercury thermometers is subjected to error. They need to be replaced with suitable alternatives.